// rem 适配 响应式

function client() {

  let width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth || 0

  let height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight || 0

  document.documentElement.style.fontSize = width / 25 + "px"

}

client()
window.onresize = function (e) {

  client()
};